Cities, where the urban heat island effect amplifies the impact of global climate change, are going to heat up in the coming decades. If greenhouse gas emissions continue on their current path, the average number of days that feel hotter than 100 degrees in the U.S. will more than double by 2050, according to a recent study.
Many cities around the world are taking action to keep cooler as temperatures rise. Some of the most common strategies are cool streets, cool roofs, and a broader urban tree canopy.
For example, Melbourne is mapping street trees and embarking on massive tree-planting efforts. The Australian city plans to double its canopy cover by 2040.
New York City has coated more than 10 million sf of rooftops with a white, reflective coating over the last decade. In Dallas, an initiative mapped areas that were hottest because of a lack of trees, and then planted trees in these areas along key pedestrian routes such as the paths that children take to school.
Tokyo has coated miles of streets with reflective pavements. Other cities have tested pavement that allows grass to grow through it.
Related Stories
Multifamily Housing | Jul 25, 2023
San Francisco seeks proposals for adaptive reuse of underutilized downtown office buildings
The City of San Francisco released a Request For Interest to identify office building conversions that city officials could help expedite with zoning changes, regulatory measures, and financial incentives.
Urban Planning | Jul 24, 2023
New York’s new ‘czar of public space’ ramps up pedestrian and bike-friendly projects
Having made considerable strides to make streets more accessible to pedestrians and bikers in recent years, New York City is continuing to build on that momentum. Ya-Ting Liu, the city’s first public realm officer, is shepherding $375 million in funding earmarked for projects intended to make the city more environmentally friendly and boost quality of life.
Concrete | Jul 19, 2023
Public policy hindering widespread adoption of sustainable concrete
Researchers are making significant strides in reducing embedded carbon in concrete, but public policies have been slow to adopt this more sustainable option.
Sustainability | Jul 19, 2023
California lawmakers approve governor’s plan to accelerate green construction
California lawmakers recently approved Gov. Gavin Newsom’s infrastructure streamlining plan that aims to accelerate clean energy and infrastructure projects.
Codes and Standards | Jul 19, 2023
Office leasing in major markets by financial services firms rebounds to pre-pandemic norms
Though the pandemic led to reductions in office leasing by financial services firms in gateway markets, a recent report by JLL found a notable leasing resurgence by those firms.
Codes and Standards | Jul 17, 2023
Outdated federal rainfall analysis impacting infrastructure projects, flood insurance
Severe rainstorms, sometimes described as “atmospheric rivers” or “torrential thunderstorms,” are making the concept of a “1-in-100-year flood event” obsolete, according to a report from First Street Foundation, an organization focused on weather risk research.
Sponsored | Fire and Life Safety | Jul 12, 2023
Fire safety considerations for cantilevered buildings [AIA course]
Bold cantilevered designs are prevalent today, as developers and architects strive to maximize space, views, and natural light in buildings. Cantilevered structures, however, present a host of challenges for building teams, according to José R. Rivera, PE, Associate Principal and Director of Plumbing and Fire Protection with Lilker.
Codes | Jul 10, 2023
Water Demand Calculator outperforms traditional plumbing codes for energy, carbon, and water savings
Using IAPMO’s Water Demand Calculator tool can result in energy, carbon, and water savings as compared to using traditional plumbing specification methods in plumbing codes, according to a study by Arup.
Contractors | Jun 30, 2023
Construction industry task force aims for standardized carbon reporting
A newly formed Associated General Contractors of America (AGC) task force on decarbonization and carbon reporting will address the challenges around reporting and reducing carbon emissions in the construction industry.
Standards | Jun 30, 2023
New ASHRAE standard aims to reduce disease transmission risk in indoor spaces
ASHRAE Standard 241, Control of Infectious Aerosols establishes minimum requirements to reduce the risk of disease transmission by exposure to infectious aerosols in new buildings, existing buildings, and major renovations. Infectious aerosols are tiny, exhaled particles that can carry pathogens that cause infections or disease.
